three-throw turnout of contrary flexures
... three-throw turnout 三开道岔 three-throw turnout of contrary flexures 寻向三开道岔 three-throw turnout of similar flexures 同向三开道岔 ...
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three-throw turnout of contrary flexures
反向弯曲的三投道岔
以上为机器翻译结果，长、整句建议使用 人工翻译 。